8108399 has 4 divisors (see below), whose sum is σ = 8732136. Its totient is φ = 7484664.

The previous prime is 8108389. The next prime is 8108423. The reversal of 8108399 is 9938018.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8108399 - 2¹⁶ = 8042863 is a prime.

It is a super-2 number, since 2×8108399² = 131492268686402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8108389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311849 + ... + 311874.

It is an arithmetic number, because the mean of its divisors is an integer number (2183034).

Almost surely, 2^8108399 is an apocalyptic number.

8108399 is a deficient number, since it is larger than the sum of its proper divisors (623737).

8108399 is a wasteful number, since it uses less digits than its factorization.

8108399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623736.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 8108399 is about 2847.5250657369. The cubic root of 8108399 is about 200.8992754579.

The spelling of 8108399 in words is "eight million, one hundred eight thousand, three hundred ninety-nine".